503040053550 has 24 divisors (see below), whose sum is σ = 1247539333176. Its totient is φ = 134144014240.

The previous prime is 503040053507. The next prime is 503040053569. The reversal of 503040053550 is 55350040305.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1676800029 + ... + 1676800328.

It is an arithmetic number, because the mean of its divisors is an integer number (51980805549).

Almost surely, 2^503040053550 is an apocalyptic number.

503040053550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

503040053550 is an abundant number, since it is smaller than the sum of its proper divisors (744499279626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

503040053550 is a wasteful number, since it uses less digits than its factorization.

503040053550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3353600372 (or 3353600367 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 30.

Adding to 503040053550 its reverse (55350040305), we get a palindrome (558390093855).

The spelling of 503040053550 in words is "five hundred three billion, forty million, fifty-three thousand, five hundred fifty".